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- Question
A gated S-R latch and its associated waveforms are shown below. What, if anything, is wrong and what could be causing the problem?
Options- A. The
output is always low; the circuit is defective. - B. The Q output should be the complement of the
output; the S and R terminals are reversed. - C. The Q should be following the R input; the R input is defective.
- D. There is nothing wrong with the circuit.
- Correct Answer
- The output is always low; the circuit is defective.
- 1. All inputs to the MAX7000S device and all macrocell outputs feed the PIA.
Options- A. True
- B. False Discuss
- 2. The 74154 is a 1-of-16 decoder. It accepts a 4-bit binary input.
Options- A. True
- B. False Discuss
- 3. A 1-of-8 octal decoder has eight outputs and decodes an input of ________ bit(s).
Options- A. three
- B. two
- C. four
- D. one Discuss
- 4. A four-line multiplexer must have as inputs four data inputs and two select inputs.
Options- A. True
- B. False Discuss
- 5. Basically, a multiplexer changes parallel data inputs to a serial output.
Options- A. True
- B. False Discuss
- 6. In a positive logic system, the HIGH level is usually represented by ________.
Options- A. 0 V
- B. +1 V
- C. +5 V
- D. +9 V Discuss
- 7. Eight bits of digital data are normally referred to as a:
Options- A. group.
- B. byte.
- C. word.
- D. cell. Discuss
- 8. The JTAG signals are named TDI, TDO, TMS, and TCK.
Options- A. True
- B. False Discuss
- 9. The exclusive-OR provides a LOW input if one input or the other input is HIGH.
Options- A. True
- B. False Discuss
- 10. A burst refresh and a normal memory operation of a DRAM can be interspersed.
Options- A. True
- B. False Discuss
More questions
Correct Answer: True
Correct Answer: True
Correct Answer: three
Correct Answer: True
Correct Answer: True
Correct Answer: +5 V
Correct Answer: byte.
Correct Answer: True
Correct Answer: False
Correct Answer: False
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